KR850001964A - Air-fuel ratio control device of internal combustion engine - Google Patents

Air-fuel ratio control device of internal combustion engine Download PDF

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Publication number
KR850001964A
KR850001964A KR1019840005056A KR840005056A KR850001964A KR 850001964 A KR850001964 A KR 850001964A KR 1019840005056 A KR1019840005056 A KR 1019840005056A KR 840005056 A KR840005056 A KR 840005056A KR 850001964 A KR850001964 A KR 850001964A
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KR
South Korea
Prior art keywords
air
fuel ratio
internal combustion
sensor
combustion engine
Prior art date
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KR1019840005056A
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Korean (ko)
Inventor
요시시게(외 2) 오오야마
Original Assignee
미다 가쓰시게
가부시기가이샤 히다찌 세이사꾸쇼
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Publication of KR850001964A publication Critical patent/KR850001964A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/18—Circuit arrangements for generating control signals by measuring intake air flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1477—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor characterised by the regulation circuit or part of it,(e.g. comparator, PI regulator, output)
    • F02D41/1479—Using a comparator with variable reference
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/04—Introducing corrections for particular operating conditions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D41/00—Electrical control of supply of combustible mixture or its constituents
    • F02D41/02—Circuit arrangements for generating control signals
    • F02D41/14—Introducing closed-loop corrections
    • F02D41/1438—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor
    • F02D41/1486—Introducing closed-loop corrections using means for determining characteristics of the combustion gases; Sensors therefor with correction for particular operating conditions

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

내용 없음No content

Description

내연기관의 공연비 제어장치Air-fuel ratio control device of internal combustion engine

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 본 발명의 실시예의 구성을 나타내는 개략도. 제2도는 제1도의 실시예에 있어서의 제어신호의 발생회로를 나타내는 블록회로도. 제3도는 내연기관의 속도(N)와 흡입공기량간의관계를 나타내는 그래프도.1 is a schematic diagram showing a configuration of an embodiment of the present invention. FIG. 2 is a block circuit diagram showing a control signal generation circuit in the embodiment of FIG. 3 is a graph showing the relationship between the speed N and the intake air amount of the internal combustion engine.

Claims (8)

엔진으로 흐르는 흡입공기흐름을 검출하는 센서(2)와 엔진회전속도 센서(8)와 상기 엔진의 경부하운전에서 고부하가동에 이르는 넓은 범위에 걸쳐 산소량을 검출하는 공연비센서(7)와 냉각수온도센서(6)와 쓰로틀밸브수단(4)과 연료공급수단(3)과 점화수단(9)과, 소정프로그램에 의하여 상기 신호를 처리하며, 상기 쓰로틀밸브제어수단(4), 상기 연료공급수단(3) 및 상기 점화수단(9)을 제어하는 제어신호를 발생시키기 위하여 상기 흡입공기흐름센서(2), 상기 회전속도센서(8), 상기 수온도센서(6) 및 상기 공연비센서(7)에서 신호를 수신하는 제어신호 발생회로(10)로 구성되는 내연기관의 공연비제어장치에 있어서, 상기 내연기관의 경부하, 중부하 또는 고부하 운전영역에서의 공연비(λ)는 λ＞1, λ＝1 또는 λ＜1에 각각 세트하며, 상기 공연비센서(7)의 출력은 상기 목표의 공연비가 상기 가동영역에 대응하여 유지되도록 피이드백제어를 하는데 사용되는 것을 특징으로 하는 내연기관의 공연비제어장치.Sensor (2) and engine speed sensor (8) for detecting the intake air flow to the engine, air-fuel ratio sensor (7) and coolant temperature sensor for detecting the oxygen content over a wide range from light load operation to high load operation of the engine (6), the throttle valve means (4), the fuel supply means (3) and the ignition means (9), and processes the signal by a predetermined program, the throttle valve control means (4), the fuel supply means (3) And a signal from the suction air flow sensor 2, the rotational speed sensor 8, the water temperature sensor 6, and the air-fuel ratio sensor 7 to generate a control signal for controlling the ignition means 9). In the air-fuel ratio control apparatus for an internal combustion engine comprising a control signal generation circuit (10) for receiving the air-fuel ratio, the air-fuel ratio (λ) in the light load, heavy load or high load operating region of the internal combustion engine is lambda> 1, are each set to λ <1, and the output of the air-fuel ratio sensor 7 is And an air-fuel ratio control apparatus for an internal combustion engine, characterized in that it is used for feedback control such that the target air-fuel ratio is maintained corresponding to the movable region. 상기 소망의 공연비는 상기 냉각수온도센서(6)로 부터의 출력을 사용하여 수정되는 것을 특징으로 하는 특허청구의 범위 1기재의 내연기관의 공연비제어장치.The desired air-fuel ratio is an air-fuel ratio control apparatus for an internal combustion engine according to claim 1, characterized in that it is modified using the output from the coolant temperature sensor (6). 또, 본 발명은 기어전동의 기어비에 대응한 신호를 발생시키는 기어비센서(20)를 구성되어 상기 소망의 공연비가 상기 기어비센서(20)로 부터의 출력을 사용하여 수정되는 것을 특징으로 하는 특허청구의범위 1기재의 내연기관의 공연비제어장치.In addition, the present invention comprises a gear ratio sensor 20 for generating a signal corresponding to the gear ratio of the gear transmission so that the desired air-fuel ratio is modified using the output from the gear ratio sensor 20. Air-fuel ratio control device for internal combustion engines of range 1. 또, 본 발명은 배가스의 온도를 검출하는 온도센서(51)로 구성되어 상기 소망의 공연비가 상기 온도센서(51)로부터 나오는 출력을 이용하여 수정되는 것을 특징으로 하는 내연기관의 공연비제어장치.Further, the present invention comprises an air-fuel ratio control apparatus for an internal combustion engine, characterized in that it comprises a temperature sensor (51) for detecting the temperature of the exhaust gas so that the desired air-fuel ratio is modified using the output from the temperature sensor (51). 상기 엔진의 토오크특성은 연료공급량에 대해서 히스터리시스특성(H1, H2)을 갖추어, 따라서 상기 공연비는 상기 공연비 피이드백제어로 원활하게 변경될 수 있는 것을 특징으로 하는 특허청구의 범위 1기재의 내연기관의 공연비제어장치.The torque characteristic of the engine has hysteresis characteristics (H 1 , H 2 ) with respect to the fuel supply amount, so that the air-fuel ratio can be smoothly changed by the air-fuel ratio feedback control. Air-fuel ratio control device for internal combustion engines. 상기 엔진이 설비된 차량의 가속(A)을 가리키는 연료공급량의 변화는 상기 차량의 중량에 의하여 상기 공연비를 원활하게 변화시키기 위해 사용되는 것을 특징으로 하는 특허청구의 범위 1기재의 내연기관의 공연비제어장치.The change in the fuel supply amount indicating the acceleration A of the vehicle equipped with the engine is used to smoothly change the air-fuel ratio according to the weight of the vehicle. Device. 본 발명은 또, 상기 공연비센서(7)의 지연특성(Δt)을 저장하는 수단으로 구성되어, 따라서 상기 소망의 공연비는 상기 저장수단에 보관된 상기 지연특성을 이용하여 수정되는 것을 특징으로하는 특허청구의 범위 1기재의 내연기관의 공연비제어장치.The invention further comprises a means for storing the delay characteristic [Delta] t of the air-fuel ratio sensor 7, so that the desired air-fuel ratio is modified using the delay characteristic stored in the storage means. The air-fuel ratio control apparatus of the internal combustion engine of Claim 1. 상기 목표의 공연비는 상기 공연비센서(7)의 경시로 인한 검출출력 신호의 오차(ε)를 이용하여 수정하는 것을 특징으로 하는 특허청구의 범위 1기재의 내연기관의 공연비제어장치.The air-fuel ratio control apparatus for an internal combustion engine according to claim 1, characterized in that the target air-fuel ratio is corrected using an error ε of the detection output signal due to the lapse of the air-fuel ratio sensor (7). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019840005056A 1983-08-24 1984-08-22 Air-fuel ratio control device of internal combustion engine KR850001964A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP83-153203 1983-08-24
JP58153203A JPH0713493B2 (en) 1983-08-24 1983-08-24 Air-fuel ratio controller for internal combustion engine

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KR850001964A true KR850001964A (en) 1985-04-10

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KR1019840005056A KR850001964A (en) 1983-08-24 1984-08-22 Air-fuel ratio control device of internal combustion engine

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US (1) US4561403A (en)
EP (1) EP0136519B1 (en)
JP (1) JPH0713493B2 (en)
KR (1) KR850001964A (en)
DE (1) DE3480416D1 (en)

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KR20210094715A (en) * 2020-01-22 2021-07-30 태경에코 주식회사 Briquette For Reducing Emissions Of Air Pollutants And Method For Preparing The Same

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KR100448125B1 (en) * 1996-12-31 2005-04-20 현대자동차주식회사 Fuel injection compensating method for vehicle
KR20210094715A (en) * 2020-01-22 2021-07-30 태경에코 주식회사 Briquette For Reducing Emissions Of Air Pollutants And Method For Preparing The Same

Also Published As

Publication number Publication date
EP0136519A3 (en) 1985-12-18
JPH0713493B2 (en) 1995-02-15
JPS6045742A (en) 1985-03-12
US4561403A (en) 1985-12-31
DE3480416D1 (en) 1989-12-14
EP0136519B1 (en) 1989-11-08
EP0136519A2 (en) 1985-04-10

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